Article
Food Science & Technology
Hongxia Li, Qing Zhong, Fengjian Luo, Xinru Wang, Li Zhou, Zongmao Chen, Xinzhong Zhang
Summary: The study for the first time investigated the degradation and metabolism of spinetoram in tea growth, processing, and brewing, revealing lower residue amounts of spinetoram in tea and tea infusion five days after spraying. Dietary risk assessment showed that the risk values were below the safety threshold, suggesting that the maximum residue limit of spinetoram in tea can be set at 1 mg/kg with a pre-harvest interval of 5 days for human consumption safety.
Article
Geosciences, Multidisciplinary
Hamza Negis, Cevdet S. Eker, Vildan Erci, Ilknur Gumus
Summary: This study evaluated the impact of different land use types on soil quality in the Konya-Karapinar region and established a minimum dataset for the soil quality index (SQI). The results showed that there were significant improvements in soil quality compared to the wind erosion affected area, but the improvements were more limited in grazing land and forested land. It is recommended to allocate more land for horticulture in erosion protection areas.
Article
Plant Sciences
Li Ruan, Xin Li, Yuhang Song, Jianwu Li, Kumuduni Niroshika Palansooriya
Summary: This study investigated the effects of two tea plant varieties with different nutrient efficiencies on improving degraded soil. The results showed that the high-nutrient-efficiency variety LJ43 can reduce soil nutrient heterogeneities and acidification, which is beneficial for improving soil quality and tea quality.
Article
Engineering, Environmental
Bitong Zhu, Yuanping Li, Christopher Rensing, Jianghua Ye, Jialin Qiu, Qinji Li, Lekang Wu, Qianxi Lu, Yv Lin, Xiaoli Jia
Summary: The study investigated the role of Pseudomonas fluorescens ZL22 in soil restoration and phenolic acid autotoxicity (PAA) regulation in tea plantations. ZL22 can degrade 96% of p-hydroxybenzoic acid and 98% of 3,4 dihydroxybenzoic acid in tea rhizosphere soil within 30 days. Its cooccurrence with low cinnamic acid levels further promotes lettuce seed growth and significantly increases tea production. ZL22 effectively regulates PAA in the rhizospheric soil, increases the abundance of genera associated with soil N, C, and S cycling, and creates optimum pH and organic carbon, and available N contents for secondary metabolite accumulation in tea leaves. The application of P. fluorescens ZL22 controls PAA, improves plant growth and soil nutrition, thereby promoting tea production and quality.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Environmental Sciences
Hongxia Li, Qing Zhong, Xinru Wang, Fengjian Luo, Li Zhou, Hezhi Sun, Mei Yang, Zhengyun Lou, Zongmao Chen, Xinzhong Zhang
Summary: The degradation and metabolism of chlorfluazuron and flonicamid in tea from garden to cup were investigated. The study found that the risk of chlorfluazuron intake from tea was negligible, while the intake risk of flonicamid and its metabolites was higher.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Horticulture
Zemao Liu, Deyu Yang, Guangtao Zhang, Lihong Zheng, Chen Chen, Xin Sun, Fangyuan Yu
Summary: Tea has gained popularity globally due to its unique flavor and health benefits. 'Yuhua' tea, a type of green tea, is a famous specialty from Nanjing, China. This study examined the impact of soil's physical and chemical properties on the chemical components of 'Yuhua' tea, such as free amino acids, tea polyphenols, and caffeine. The findings suggest that soil management plays a crucial role in improving the quality of 'Yuhua' tea.
Article
Agronomy
Liyana Rallage Mahesh Chaminda Liyanage, Muhammad Firdaus Sulaiman, Roslan Ismail, Gamini Perera Gunaratne, Randombage Saman Dharmakeerthi, Minninga Geethika Neranjani Rupasinghe, Amoda Priyangi Mayakaduwa, Mohamed M. Hanafi
Summary: This study focuses on the restoration potentials of tea-growing soils using organic materials available in tea ecosystems. Gliricidia, charged biochar, tea waste, and compost have shown positive effects on soil health indicators, such as microbial biomass carbon and nitrogen, dehydrogenase and catalase activities. These amendments have the potential to improve soil quality and enrich the soil recalcitrant C pool in the long term, with biochar needing to be charged with nutrients to achieve soil restoration goals.
Article
Immunology
Saowaluck Tibpromma, Yang Dong, Sailesh Ranjitkar, Douglas A. Schaefer, Samantha C. Karunarathna, Kevin D. Hyde, Ruvishika S. Jayawardena, Ishara S. Manawasinghe, Daniel P. Bebber, Itthayakorn Promputtha, Jianchu Xu, Peter E. Mortimer, Jun Sheng
Summary: Climate change has a significant impact on tea cultivation and its associated fungal pathogens. By 2050, the suitable growing areas for Camellia sinensis will decrease, while new areas may become suitable for tea cultivation. However, new challenges will arise from existing and potentially new fungal pathogens in these areas, requiring innovative approaches to protect global tea cultivation.
FRONTIERS IN CELLULAR AND INFECTION MICROBIOLOGY
(2021)
Article
Food Science & Technology
Shuai Zong, Helin Wang, Jinglei Li, Jun Liu, Changhai Jin
Summary: Zhuke-Hulu tea showed significant anti-oxidant activity by enhancing endogenous anti-oxidant defense system and Nrf2 nuclear translocation, and exhibited anti-inflammatory efficiency by down-regulating protein levels of iNOS and COX-2 as well as production of pro-inflammatory cytokines. Additionally, it alleviated intestinal inflammation by reducing pro-inflammatory cytokines levels, inhibiting inflammatory cell infiltration, and modulating gut microbiota.
Article
Agriculture, Multidisciplinary
Aijuan Bai, Ang Chen, Wuying Chen, Shaowen Liu, Xiangwen Luo, Yong Liu, Deyong Zhang
Summary: An effective analytical method was established to determine Tolfenpyrad, dinotefuran and its metabolites in tea. The results showed that Tolfenpyrad and dinotefuran in tea were easily degraded, with no significant health risk to consumers.
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
(2021)
Article
Environmental Sciences
Muyesaier Tudi, Albert Atabila, Huada Daniel Ruan, Li Wang, Jia Lyu, Shuangmei Tong, Qiming Jimmy Yu, Ross Sadler, Dung Tri Phung, Des Connell
Summary: Pymetrozine has replaced toxic organophosphate pesticides for controlling rice pests in China. Field studies were conducted to investigate the natural dynamics and residues of pymetrozine in rice fields. The results showed that pymetrozine had a low environmental persistence in both paddy water and soils, which has significant implications for its use in agricultural systems globally.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2022)
Article
Agriculture, Multidisciplinary
Hua Sun, Bo Wen, Zichen Wu, Anqi Xing, Xiaohan Xu, Yali Chang, Guiyi Guo, Yuhua Wang
Summary: Water-soluble fluoride (WS-F) can be directly absorbed by tea plants from soil, serving as a major source of dietary fluoride for tea consumers. The accumulation of WS-F in tea leaves is positively correlated with leaf maturity and soil WS-F content. Controlling pH and WS-F concentration in plantation soil, as well as consuming tea infusion made from young leaves or reducing soaking time, can help mitigate the health risks associated with WS-F.
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
(2022)
Article
Soil Science
N. Mamehpour, Salar Rezapour, N. Ghaemian
Summary: Urbanization has both negative and positive impacts on soil quality, with an increase in soil salinity, heavy metals, and erodibility, while also increasing organic matter, nitrogen, phosphorus, and cation exchange capacity. The study found that urban soils exhibited a decrease in SQI scenarios compared to control soils, indicating worsening soil quality in urban areas. The highest values of soil quality indicators were observed in Fluvisols, suggesting a combined influence of soil type and agricultural management practices.
Article
Environmental Sciences
Lei Du, Zicheng Zheng, Tingxuan Li, Yongdong Wang, Huagang Huang, Haiying Yu, Daihua Ye, Tao Liu, Xizhou Zhang
Summary: Strategies to increase carbon sequestration in tea plantation soils need to consider the variation in C sequestration among different tea varieties. In this study, FD soil showed the highest SOC stock, dominated by macroaggregate-associated SOC, while CN soil accumulated the most labile organic carbon in most aggregates, correlated with C return from pruning litter.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Kayla Eason, Timothy Grey, Miguel Cabrera, Nicholas Basinger, Nicholas Hurdle
Summary: Flumioxazin is a preemergence herbicide that can control a broad spectrum of weeds in various cropping systems. The studies on the environmental fate of flumioxazin revealed its degradation properties in soil and aqueous solution, showing that degradation can be rapid with the input of thermal energy.
Article
Geosciences, Multidisciplinary
Haifeng Chen, Hao Zou, M. Santosh, Huawen Cao, Franco Pirajno, Changcheng Huang, Mingcai Hou
Summary: Researchers have identified a supervolcano eruption event in the tuff layers from the Early-Middle Triassic boundary in the Yangtze Block. This eruption may have contributed to the delayed biotic recovery after the end-Permian mass extinction.
GEOSCIENCE FRONTIERS
(2024)
Article
Geosciences, Multidisciplinary
Yanjuan Yin, Baohua Zhang, Xinzhuan Guo
Summary: This study determines the Fe-Mn interdiffusion rates in natural Mn-bearing garnet crystals with 750 ppm H2O using an experimental approach. The results show that the Fe-Mn interdiffusion coefficient slightly decreases with increasing Fe content, and water significantly enhances the Fe-Mn interdiffusion in garnet. These findings suggest that the time required for homogenization of the compositional zoning of a garnet is much shorter than previously thought.
GEOSCIENCE FRONTIERS
(2024)
Article
Geosciences, Multidisciplinary
Yirang Jang, Sung Won Kim, Vinod O. Samuel, Sanghoon Kwon, Seung-Ik Park, M. Santosh, Keewook Yi
Summary: Detrital zircon geochronology and Hf isotope analysis are used to infer provenance characteristics and evaluate the tectonic evolution of sedimentary basins. The results of this study show that the Paleozoic sequences of the Okcheon Belt have a diverse provenance linked to different tectonic environments.
GEOSCIENCE FRONTIERS
(2024)
Article
Geosciences, Multidisciplinary
Stephen F. Foley, Isra S. Ezad
Summary: This study investigates the trace element compositions of melts and minerals from hydrous pyroxenites containing K-richterite through high-pressure experiments. The results show that different minerals play different roles in the enrichment of various trace elements. The study also models the isotopic aging process in hydrous pyroxenite source rocks.
GEOSCIENCE FRONTIERS
(2024)
Article
Geosciences, Multidisciplinary
G. Harshitha, C. Manikyamba, M. Santosh, Cheng-Xue Yang, A. Keshav Krishna, V. V. Sesha Sai, I. Panduranga Reddy
Summary: The early Archean oceans underwent significant redox changes that had a lasting impact on the Earth's biosphere. This study investigates the geochemical characteristics of Archean Mnformations in southern India and reveals the importance of these sedimentary deposits in understanding the ancient redox conditions and sedimentation patterns. The findings suggest that the sediments were deposited in shallow to deeper shelf environments in the Archean proto-ocean, and they provide evidence of regional episodes of ocean oxygenation prior to the Great Oxygenation Event.
GEOSCIENCE FRONTIERS
(2024)
